Value Collection 592503BR Hex Socket Cap Screw 1-8 Unc

Product Description

The VALUE COLLECTION 592503BR is a hex socket cap screw designed for high-strength fastening applications where corrosion resistance and dimensional accuracy are critical. It features a 1-8 UNC thread size, a 4-inch length under the head, and a 3/4-inch hex drive. The screw is partially threaded and manufactured from 18-8 austenitic stainless steel (Material Grade A2), providing reliable performance in wet, chemical-exposure, or outdoor environments. This fastener meets ASME/ANSI B18.3 and ASTM F837 standards. It is used by millwrights, maintenance mechanics, pipefitters, and industrial technicians who require a socket-drive cap screw for structural and mechanical assembly work.

This screw is suited for general industrial, mechanical, and structural fastening applications. Its partial threading allows for clean clamping action in bolted joints where the unthreaded shank spans the grip length. The 1-8 UNC coarse thread provides strong engagement in tapped holes and is widely used in machine frames, equipment mounts, and flange connections. The bright, uncoated finish is appropriate for use with compatible stainless fastener hardware in corrosion-prone or cleanroom environments.

Key Features

• 1-8 UNC coarse thread for strong tapped-hole engagement
• 4-inch length under head for use in thicker material stacks
• 3/4-inch hex socket drive for high-torque installation with standard hex keys or socket drivers
• Partially threaded shank provides positive clamping in bolted joint applications
• 18-8 austenitic stainless steel (Grade A2) for corrosion resistance
• Meets ASME/ANSI B18.3 and ASTM F837 fastener standards

Compatibility

Designed for use in any application requiring a 1-8 UNC hex socket cap screw with a 4-inch length under head and a 3/4-inch drive. Fits standard tapped holes machined to 1-8 UNC specifications per ASME/ANSI B18.3.

Installation Notes

Installation is performed using a 3/4-inch hex key or socket driver. Power down or de-energize any equipment before fastening near live electrical components. Apply appropriate anti-seize compound when joining dissimilar metals or in high-temperature environments to prevent galling on stainless threads. Follow applicable torque guidelines per your engineering specification or applicable mechanical code for the joint material and fastener grade.